Xerox Document Centre Reference Guide Page 5 - 155. Fax (OptionalFeature)5. Fax (OptionalFeature)Original InputThis screen allows you the option to program the size of originals orto allow the Document Centre to determine the size automatically.AutoOriginals scanned, using the Document FeederAuto is the normal operating mode of the machine and allows themachine to determine the size automatically.Originals scanned, using the Document GlassWhen originals are scanned from the Document Glass with thecover open the system will scan the original twice. The first scan isa prescan to determine the size and location of the original. Thesecond scan will capture the image.Manual Platen InputThis option allows you to specify the dimensions of the documentscanning region. Use this for hard to detect originals liketransparencies or originals with dark borders.Select a standard size or use Custom size to manually adjust thescanning dimensions. The adjustment range is 1 x 1 inch to 17 x 11.7inches.The originals are assumed to be registered at the left rear corner ofthe Document Glass.